阿尔茨海默氏病(Alzheimerdisease,AD)是一种以渐进性记忆力丧失和认知障碍的神经退行性疾病,患者脑部有两个明显的病理学特征:即细胞内神经原纤维缠结(neurofibrillarytangle,NFT)和细胞外形成淀粉样斑(senileplaque,SP)。大量的研究结果表明:部分的AD由基因突变引起,并在家族内遗传,其临床症状表现为较早出现AD相关病理特征,因此又称做早发型家族性AD(early onsetfamilialFAD);其中早老素1(Presenilin1,PS1)/早老素2(Presenilin2)的基因突变是造成早发家族性痴呆的主要原因。PS1是γ分泌酶的重要...Alzheimer Disease (AD) is a neurodegenerative disorder which is characterized clinically by progressive loss of memory and impairment of cognitive abilities. Neurofibrillary tangle (NFT) and senile plaque(SP)are the two hallmark pathological features found in the brains of AD patients. A subset of AD develops disease phenotypes in the early stages of patients and is inheritable within kindred...学位:理学博士院系专业:生命科学学院生物学系_生物化学与分子生物学学号:B20032602